1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $) 4 * 5 * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> 6 * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 7 */ 8 9 #ifndef __ACPI_BUS_H__ 10 #define __ACPI_BUS_H__ 11 12 #include <linux/device.h> 13 #include <linux/property.h> 14 15 /* TBD: Make dynamic */ 16 #define ACPI_MAX_HANDLES 10 17 struct acpi_handle_list { 18 u32 count; 19 acpi_handle handles[ACPI_MAX_HANDLES]; 20 }; 21 22 /* acpi_utils.h */ 23 acpi_status 24 acpi_extract_package(union acpi_object *package, 25 struct acpi_buffer *format, struct acpi_buffer *buffer); 26 acpi_status 27 acpi_evaluate_integer(acpi_handle handle, 28 acpi_string pathname, 29 struct acpi_object_list *arguments, unsigned long long *data); 30 acpi_status 31 acpi_evaluate_reference(acpi_handle handle, 32 acpi_string pathname, 33 struct acpi_object_list *arguments, 34 struct acpi_handle_list *list); 35 acpi_status 36 acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, 37 struct acpi_buffer *status_buf); 38 39 acpi_status 40 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); 41 42 bool acpi_has_method(acpi_handle handle, char *name); 43 acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, 44 u64 arg); 45 acpi_status acpi_evaluate_ej0(acpi_handle handle); 46 acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); 47 bool acpi_ata_match(acpi_handle handle); 48 bool acpi_bay_match(acpi_handle handle); 49 bool acpi_dock_match(acpi_handle handle); 50 51 bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs); 52 union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, 53 u64 rev, u64 func, union acpi_object *argv4); 54 55 static inline union acpi_object * 56 acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, 57 u64 func, union acpi_object *argv4, 58 acpi_object_type type) 59 { 60 union acpi_object *obj; 61 62 obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4); 63 if (obj && obj->type != type) { 64 ACPI_FREE(obj); 65 obj = NULL; 66 } 67 68 return obj; 69 } 70 71 #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ 72 { \ 73 .package.type = ACPI_TYPE_PACKAGE, \ 74 .package.count = (cnt), \ 75 .package.elements = (eles) \ 76 } 77 78 bool acpi_dev_found(const char *hid); 79 bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); 80 81 #ifdef CONFIG_ACPI 82 83 #include <linux/proc_fs.h> 84 85 #define ACPI_BUS_FILE_ROOT "acpi" 86 extern struct proc_dir_entry *acpi_root_dir; 87 88 enum acpi_bus_device_type { 89 ACPI_BUS_TYPE_DEVICE = 0, 90 ACPI_BUS_TYPE_POWER, 91 ACPI_BUS_TYPE_PROCESSOR, 92 ACPI_BUS_TYPE_THERMAL, 93 ACPI_BUS_TYPE_POWER_BUTTON, 94 ACPI_BUS_TYPE_SLEEP_BUTTON, 95 ACPI_BUS_TYPE_ECDT_EC, 96 ACPI_BUS_DEVICE_TYPE_COUNT 97 }; 98 99 struct acpi_driver; 100 struct acpi_device; 101 102 /* 103 * ACPI Scan Handler 104 * ----------------- 105 */ 106 107 struct acpi_hotplug_profile { 108 struct kobject kobj; 109 int (*scan_dependent)(struct acpi_device *adev); 110 void (*notify_online)(struct acpi_device *adev); 111 bool enabled:1; 112 bool demand_offline:1; 113 }; 114 115 static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( 116 struct kobject *kobj) 117 { 118 return container_of(kobj, struct acpi_hotplug_profile, kobj); 119 } 120 121 struct acpi_scan_handler { 122 const struct acpi_device_id *ids; 123 struct list_head list_node; 124 bool (*match)(const char *idstr, const struct acpi_device_id **matchid); 125 int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); 126 void (*detach)(struct acpi_device *dev); 127 void (*bind)(struct device *phys_dev); 128 void (*unbind)(struct device *phys_dev); 129 struct acpi_hotplug_profile hotplug; 130 }; 131 132 /* 133 * ACPI Hotplug Context 134 * -------------------- 135 */ 136 137 struct acpi_hotplug_context { 138 struct acpi_device *self; 139 int (*notify)(struct acpi_device *, u32); 140 void (*uevent)(struct acpi_device *, u32); 141 void (*fixup)(struct acpi_device *); 142 }; 143 144 /* 145 * ACPI Driver 146 * ----------- 147 */ 148 149 typedef int (*acpi_op_add) (struct acpi_device * device); 150 typedef int (*acpi_op_remove) (struct acpi_device * device); 151 typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); 152 153 struct acpi_device_ops { 154 acpi_op_add add; 155 acpi_op_remove remove; 156 acpi_op_notify notify; 157 }; 158 159 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ 160 161 struct acpi_driver { 162 char name[80]; 163 char class[80]; 164 const struct acpi_device_id *ids; /* Supported Hardware IDs */ 165 unsigned int flags; 166 struct acpi_device_ops ops; 167 struct device_driver drv; 168 struct module *owner; 169 }; 170 171 /* 172 * ACPI Device 173 * ----------- 174 */ 175 176 /* Status (_STA) */ 177 178 struct acpi_device_status { 179 u32 present:1; 180 u32 enabled:1; 181 u32 show_in_ui:1; 182 u32 functional:1; 183 u32 battery_present:1; 184 u32 reserved:27; 185 }; 186 187 /* Flags */ 188 189 struct acpi_device_flags { 190 u32 dynamic_status:1; 191 u32 removable:1; 192 u32 ejectable:1; 193 u32 power_manageable:1; 194 u32 match_driver:1; 195 u32 initialized:1; 196 u32 visited:1; 197 u32 hotplug_notify:1; 198 u32 is_dock_station:1; 199 u32 of_compatible_ok:1; 200 u32 coherent_dma:1; 201 u32 cca_seen:1; 202 u32 enumeration_by_parent:1; 203 u32 reserved:19; 204 }; 205 206 /* File System */ 207 208 struct acpi_device_dir { 209 struct proc_dir_entry *entry; 210 }; 211 212 #define acpi_device_dir(d) ((d)->dir.entry) 213 214 /* Plug and Play */ 215 216 typedef char acpi_bus_id[8]; 217 typedef u64 acpi_bus_address; 218 typedef char acpi_device_name[40]; 219 typedef char acpi_device_class[20]; 220 221 struct acpi_hardware_id { 222 struct list_head list; 223 const char *id; 224 }; 225 226 struct acpi_pnp_type { 227 u32 hardware_id:1; 228 u32 bus_address:1; 229 u32 platform_id:1; 230 u32 reserved:29; 231 }; 232 233 struct acpi_device_pnp { 234 acpi_bus_id bus_id; /* Object name */ 235 struct acpi_pnp_type type; /* ID type */ 236 acpi_bus_address bus_address; /* _ADR */ 237 char *unique_id; /* _UID */ 238 struct list_head ids; /* _HID and _CIDs */ 239 acpi_device_name device_name; /* Driver-determined */ 240 acpi_device_class device_class; /* " */ 241 union acpi_object *str_obj; /* unicode string for _STR method */ 242 }; 243 244 #define acpi_device_bid(d) ((d)->pnp.bus_id) 245 #define acpi_device_adr(d) ((d)->pnp.bus_address) 246 const char *acpi_device_hid(struct acpi_device *device); 247 #define acpi_device_uid(d) ((d)->pnp.unique_id) 248 #define acpi_device_name(d) ((d)->pnp.device_name) 249 #define acpi_device_class(d) ((d)->pnp.device_class) 250 251 /* Power Management */ 252 253 struct acpi_device_power_flags { 254 u32 explicit_get:1; /* _PSC present? */ 255 u32 power_resources:1; /* Power resources */ 256 u32 inrush_current:1; /* Serialize Dx->D0 */ 257 u32 power_removed:1; /* Optimize Dx->D0 */ 258 u32 ignore_parent:1; /* Power is independent of parent power state */ 259 u32 dsw_present:1; /* _DSW present? */ 260 u32 reserved:26; 261 }; 262 263 struct acpi_device_power_state { 264 struct { 265 u8 valid:1; 266 u8 explicit_set:1; /* _PSx present? */ 267 u8 reserved:6; 268 } flags; 269 int power; /* % Power (compared to D0) */ 270 int latency; /* Dx->D0 time (microseconds) */ 271 struct list_head resources; /* Power resources referenced */ 272 }; 273 274 struct acpi_device_power { 275 int state; /* Current state */ 276 struct acpi_device_power_flags flags; 277 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ 278 }; 279 280 /* Performance Management */ 281 282 struct acpi_device_perf_flags { 283 u8 reserved:8; 284 }; 285 286 struct acpi_device_perf_state { 287 struct { 288 u8 valid:1; 289 u8 reserved:7; 290 } flags; 291 u8 power; /* % Power (compared to P0) */ 292 u8 performance; /* % Performance ( " ) */ 293 int latency; /* Px->P0 time (microseconds) */ 294 }; 295 296 struct acpi_device_perf { 297 int state; 298 struct acpi_device_perf_flags flags; 299 int state_count; 300 struct acpi_device_perf_state *states; 301 }; 302 303 /* Wakeup Management */ 304 struct acpi_device_wakeup_flags { 305 u8 valid:1; /* Can successfully enable wakeup? */ 306 u8 notifier_present:1; /* Wake-up notify handler has been installed */ 307 }; 308 309 struct acpi_device_wakeup_context { 310 void (*func)(struct acpi_device_wakeup_context *context); 311 struct device *dev; 312 }; 313 314 struct acpi_device_wakeup { 315 acpi_handle gpe_device; 316 u64 gpe_number; 317 u64 sleep_state; 318 struct list_head resources; 319 struct acpi_device_wakeup_flags flags; 320 struct acpi_device_wakeup_context context; 321 struct wakeup_source *ws; 322 int prepare_count; 323 int enable_count; 324 }; 325 326 struct acpi_device_physical_node { 327 unsigned int node_id; 328 struct list_head node; 329 struct device *dev; 330 bool put_online:1; 331 }; 332 333 struct acpi_device_properties { 334 const guid_t *guid; 335 const union acpi_object *properties; 336 struct list_head list; 337 }; 338 339 /* ACPI Device Specific Data (_DSD) */ 340 struct acpi_device_data { 341 const union acpi_object *pointer; 342 struct list_head properties; 343 const union acpi_object *of_compatible; 344 struct list_head subnodes; 345 }; 346 347 struct acpi_gpio_mapping; 348 349 /* Device */ 350 struct acpi_device { 351 int device_type; 352 acpi_handle handle; /* no handle for fixed hardware */ 353 struct fwnode_handle fwnode; 354 struct acpi_device *parent; 355 struct list_head children; 356 struct list_head node; 357 struct list_head wakeup_list; 358 struct list_head del_list; 359 struct acpi_device_status status; 360 struct acpi_device_flags flags; 361 struct acpi_device_pnp pnp; 362 struct acpi_device_power power; 363 struct acpi_device_wakeup wakeup; 364 struct acpi_device_perf performance; 365 struct acpi_device_dir dir; 366 struct acpi_device_data data; 367 struct acpi_scan_handler *handler; 368 struct acpi_hotplug_context *hp; 369 struct acpi_driver *driver; 370 const struct acpi_gpio_mapping *driver_gpios; 371 void *driver_data; 372 struct device dev; 373 unsigned int physical_node_count; 374 unsigned int dep_unmet; 375 struct list_head physical_node_list; 376 struct mutex physical_node_lock; 377 void (*remove)(struct acpi_device *); 378 }; 379 380 /* Non-device subnode */ 381 struct acpi_data_node { 382 const char *name; 383 acpi_handle handle; 384 struct fwnode_handle fwnode; 385 struct fwnode_handle *parent; 386 struct acpi_device_data data; 387 struct list_head sibling; 388 struct kobject kobj; 389 struct completion kobj_done; 390 }; 391 392 extern const struct fwnode_operations acpi_device_fwnode_ops; 393 extern const struct fwnode_operations acpi_data_fwnode_ops; 394 extern const struct fwnode_operations acpi_static_fwnode_ops; 395 396 bool is_acpi_device_node(const struct fwnode_handle *fwnode); 397 bool is_acpi_data_node(const struct fwnode_handle *fwnode); 398 399 static inline bool is_acpi_node(const struct fwnode_handle *fwnode) 400 { 401 return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode)); 402 } 403 404 #define to_acpi_device_node(__fwnode) \ 405 ({ \ 406 typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \ 407 \ 408 is_acpi_device_node(__to_acpi_device_node_fwnode) ? \ 409 container_of(__to_acpi_device_node_fwnode, \ 410 struct acpi_device, fwnode) : \ 411 NULL; \ 412 }) 413 414 #define to_acpi_data_node(__fwnode) \ 415 ({ \ 416 typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode; \ 417 \ 418 is_acpi_data_node(__to_acpi_data_node_fwnode) ? \ 419 container_of(__to_acpi_data_node_fwnode, \ 420 struct acpi_data_node, fwnode) : \ 421 NULL; \ 422 }) 423 424 static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode) 425 { 426 return !IS_ERR_OR_NULL(fwnode) && 427 fwnode->ops == &acpi_static_fwnode_ops; 428 } 429 430 static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode, 431 const char *name) 432 { 433 return is_acpi_data_node(fwnode) ? 434 (!strcmp(to_acpi_data_node(fwnode)->name, name)) : false; 435 } 436 437 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 438 { 439 return &adev->fwnode; 440 } 441 442 static inline void *acpi_driver_data(struct acpi_device *d) 443 { 444 return d->driver_data; 445 } 446 447 #define to_acpi_device(d) container_of(d, struct acpi_device, dev) 448 #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) 449 450 static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) 451 { 452 *((u32 *)&adev->status) = sta; 453 } 454 455 static inline void acpi_set_hp_context(struct acpi_device *adev, 456 struct acpi_hotplug_context *hp) 457 { 458 hp->self = adev; 459 adev->hp = hp; 460 } 461 462 void acpi_initialize_hp_context(struct acpi_device *adev, 463 struct acpi_hotplug_context *hp, 464 int (*notify)(struct acpi_device *, u32), 465 void (*uevent)(struct acpi_device *, u32)); 466 467 /* acpi_device.dev.bus == &acpi_bus_type */ 468 extern struct bus_type acpi_bus_type; 469 470 /* 471 * Events 472 * ------ 473 */ 474 475 struct acpi_bus_event { 476 struct list_head node; 477 acpi_device_class device_class; 478 acpi_bus_id bus_id; 479 u32 type; 480 u32 data; 481 }; 482 483 extern struct kobject *acpi_kobj; 484 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); 485 void acpi_bus_private_data_handler(acpi_handle, void *); 486 int acpi_bus_get_private_data(acpi_handle, void **); 487 int acpi_bus_attach_private_data(acpi_handle, void *); 488 void acpi_bus_detach_private_data(acpi_handle); 489 extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); 490 extern int register_acpi_notifier(struct notifier_block *); 491 extern int unregister_acpi_notifier(struct notifier_block *); 492 493 /* 494 * External Functions 495 */ 496 497 int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); 498 struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); 499 void acpi_bus_put_acpi_device(struct acpi_device *adev); 500 acpi_status acpi_bus_get_status_handle(acpi_handle handle, 501 unsigned long long *sta); 502 int acpi_bus_get_status(struct acpi_device *device); 503 504 int acpi_bus_set_power(acpi_handle handle, int state); 505 const char *acpi_power_state_string(int state); 506 int acpi_device_set_power(struct acpi_device *device, int state); 507 int acpi_bus_init_power(struct acpi_device *device); 508 int acpi_device_fix_up_power(struct acpi_device *device); 509 int acpi_bus_update_power(acpi_handle handle, int *state_p); 510 int acpi_device_update_power(struct acpi_device *device, int *state_p); 511 bool acpi_bus_power_manageable(acpi_handle handle); 512 int acpi_device_power_add_dependent(struct acpi_device *adev, 513 struct device *dev); 514 void acpi_device_power_remove_dependent(struct acpi_device *adev, 515 struct device *dev); 516 517 #ifdef CONFIG_PM 518 bool acpi_bus_can_wakeup(acpi_handle handle); 519 #else 520 static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } 521 #endif 522 523 void acpi_scan_lock_acquire(void); 524 void acpi_scan_lock_release(void); 525 void acpi_lock_hp_context(void); 526 void acpi_unlock_hp_context(void); 527 int acpi_scan_add_handler(struct acpi_scan_handler *handler); 528 int acpi_bus_register_driver(struct acpi_driver *driver); 529 void acpi_bus_unregister_driver(struct acpi_driver *driver); 530 int acpi_bus_scan(acpi_handle handle); 531 void acpi_bus_trim(struct acpi_device *start); 532 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); 533 int acpi_match_device_ids(struct acpi_device *device, 534 const struct acpi_device_id *ids); 535 void acpi_set_modalias(struct acpi_device *adev, const char *default_id, 536 char *modalias, size_t len); 537 int acpi_create_dir(struct acpi_device *); 538 void acpi_remove_dir(struct acpi_device *); 539 540 static inline bool acpi_device_enumerated(struct acpi_device *adev) 541 { 542 return adev && adev->flags.initialized && adev->flags.visited; 543 } 544 545 /** 546 * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver 547 * @__acpi_driver: acpi_driver struct 548 * 549 * Helper macro for ACPI drivers which do not do anything special in module 550 * init/exit. This eliminates a lot of boilerplate. Each module may only 551 * use this macro once, and calling it replaces module_init() and module_exit() 552 */ 553 #define module_acpi_driver(__acpi_driver) \ 554 module_driver(__acpi_driver, acpi_bus_register_driver, \ 555 acpi_bus_unregister_driver) 556 557 /* 558 * Bind physical devices with ACPI devices 559 */ 560 struct acpi_bus_type { 561 struct list_head list; 562 const char *name; 563 bool (*match)(struct device *dev); 564 struct acpi_device * (*find_companion)(struct device *); 565 void (*setup)(struct device *); 566 void (*cleanup)(struct device *); 567 }; 568 int register_acpi_bus_type(struct acpi_bus_type *); 569 int unregister_acpi_bus_type(struct acpi_bus_type *); 570 int acpi_bind_one(struct device *dev, struct acpi_device *adev); 571 int acpi_unbind_one(struct device *dev); 572 573 struct acpi_pci_root { 574 struct acpi_device * device; 575 struct pci_bus *bus; 576 u16 segment; 577 struct resource secondary; /* downstream bus range */ 578 579 u32 osc_support_set; /* _OSC state of support bits */ 580 u32 osc_control_set; /* _OSC state of control bits */ 581 phys_addr_t mcfg_addr; 582 }; 583 584 /* helper */ 585 586 bool acpi_dma_supported(struct acpi_device *adev); 587 enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); 588 int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset, 589 u64 *size); 590 int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr); 591 592 struct acpi_device *acpi_find_child_device(struct acpi_device *parent, 593 u64 address, bool check_children); 594 int acpi_is_root_bridge(acpi_handle); 595 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); 596 597 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); 598 int acpi_disable_wakeup_device_power(struct acpi_device *dev); 599 600 #ifdef CONFIG_X86 601 bool acpi_device_always_present(struct acpi_device *adev); 602 #else 603 static inline bool acpi_device_always_present(struct acpi_device *adev) 604 { 605 return false; 606 } 607 #endif 608 609 #ifdef CONFIG_PM 610 void acpi_pm_wakeup_event(struct device *dev); 611 acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, 612 void (*func)(struct acpi_device_wakeup_context *context)); 613 acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); 614 bool acpi_pm_device_can_wakeup(struct device *dev); 615 int acpi_pm_device_sleep_state(struct device *, int *, int); 616 int acpi_pm_set_device_wakeup(struct device *dev, bool enable); 617 int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable); 618 #else 619 static inline void acpi_pm_wakeup_event(struct device *dev) 620 { 621 } 622 static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 623 struct device *dev, 624 void (*func)(struct acpi_device_wakeup_context *context)) 625 { 626 return AE_SUPPORT; 627 } 628 static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) 629 { 630 return AE_SUPPORT; 631 } 632 static inline bool acpi_pm_device_can_wakeup(struct device *dev) 633 { 634 return false; 635 } 636 static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) 637 { 638 if (p) 639 *p = ACPI_STATE_D0; 640 641 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? 642 m : ACPI_STATE_D0; 643 } 644 static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable) 645 { 646 return -ENODEV; 647 } 648 static inline int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable) 649 { 650 return -ENODEV; 651 } 652 #endif 653 654 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 655 bool acpi_sleep_state_supported(u8 sleep_state); 656 #else 657 static inline bool acpi_sleep_state_supported(u8 sleep_state) { return false; } 658 #endif 659 660 #ifdef CONFIG_ACPI_SLEEP 661 u32 acpi_target_system_state(void); 662 #else 663 static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } 664 #endif 665 666 static inline bool acpi_device_power_manageable(struct acpi_device *adev) 667 { 668 return adev->flags.power_manageable; 669 } 670 671 static inline bool acpi_device_can_wakeup(struct acpi_device *adev) 672 { 673 return adev->wakeup.flags.valid; 674 } 675 676 static inline bool acpi_device_can_poweroff(struct acpi_device *adev) 677 { 678 return adev->power.states[ACPI_STATE_D3_COLD].flags.valid || 679 ((acpi_gbl_FADT.header.revision < 6) && 680 adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set); 681 } 682 683 bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2); 684 685 struct acpi_device * 686 acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv); 687 688 static inline void acpi_dev_put(struct acpi_device *adev) 689 { 690 put_device(&adev->dev); 691 } 692 #else /* CONFIG_ACPI */ 693 694 static inline int register_acpi_bus_type(void *bus) { return 0; } 695 static inline int unregister_acpi_bus_type(void *bus) { return 0; } 696 697 #endif /* CONFIG_ACPI */ 698 699 #endif /*__ACPI_BUS_H__*/ 700